Lawrence M Alleva Mersana Therapeutics, Inc. (MRSN) insider trading activity

Lawrence M Alleva is Director of Mersana Therapeutics, Inc.. Currently has a direct ownership of 0 shares of MRSN, which is worth approximately $0. The most recent transaction as insider was on Jan 06, 2026, when has been sold 578 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 0

100.0% 3M change

100.0% 12M change

Total Value Held $0

Lawrence M Alleva Transaction History

Date	Transaction	Value	Shares Traded	Shares Held	Form
Jan 06 2026	SELL Disposition due to a tender of shares in a change of control transaction	-	578 Reduced 100.0%	0 Common Stock
Jun 08 2023	BUY Grant, award, or other acquisition	-	14,467 Added 50.0%	14,467 Common Stock

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